fix: avoid requirements to jdk.unsupported module

Author: bednar

client/src/generated/java/com/influxdb/client/JSON.java

@@ -47,6 +47,7 @@
 public class JSON {
     private Gson gson;
     private DateTypeAdapter dateTypeAdapter = new DateTypeAdapter();
+    private SqlDateTypeAdapter sqlDateTypeAdapter = new SqlDateTypeAdapter();
     private OffsetDateTimeTypeAdapter offsetDateTimeTypeAdapter = new OffsetDateTimeTypeAdapter();
     private LocalDateTypeAdapter localDateTypeAdapter = new LocalDateTypeAdapter();
 
@@ -173,6 +174,7 @@ private static Class getClassByDiscriminator(Map classByDiscriminatorValue, Stri
     public JSON() {
         gson = createGson()
             .registerTypeAdapter(Date.class, dateTypeAdapter)
+            .registerTypeAdapter(java.sql.Date.class, sqlDateTypeAdapter)
             .registerTypeAdapter(OffsetDateTime.class, offsetDateTimeTypeAdapter)
             .registerTypeAdapter(LocalDate.class, localDateTypeAdapter)
             .create();
@@ -302,6 +304,60 @@ public JSON setLocalDateFormat(DateTimeFormatter dateFormat) {
         return this;
     }
 
+    /**
+     * Gson TypeAdapter for java.sql.Date type
+     * If the dateFormat is null, a simple "yyyy-MM-dd" format will be used
+     * (more efficient than SimpleDateFormat).
+     */
+    public static class SqlDateTypeAdapter extends TypeAdapter<java.sql.Date> {
+
+        private DateFormat dateFormat;
+
+        public SqlDateTypeAdapter() {
+        }
+
+        public SqlDateTypeAdapter(DateFormat dateFormat) {
+            this.dateFormat = dateFormat;
+        }
+
+        public void setFormat(DateFormat dateFormat) {
+            this.dateFormat = dateFormat;
+        }
+
+        @Override
+        public void write(JsonWriter out, java.sql.Date date) throws IOException {
+            if (date == null) {
+                out.nullValue();
+            } else {
+                String value;
+                if (dateFormat != null) {
+                    value = dateFormat.format(date);
+                } else {
+                    value = date.toString();
+                }
+                out.value(value);
+            }
+        }
+
+        @Override
+        public java.sql.Date read(JsonReader in) throws IOException {
+            switch (in.peek()) {
+                case NULL:
+                    in.nextNull();
+                    return null;
+                default:
+                    String date = in.nextString();
+                    try {
+                        if (dateFormat != null) {
+                            return new java.sql.Date(dateFormat.parse(date).getTime());
+                        }
+                        return new java.sql.Date(ISO8601Utils.parse(date, new ParsePosition(0)).getTime());
+                    } catch (ParseException e) {
+                        throw new JsonParseException(e);
+                    }
+            }
+        }
+    }
 
     /**
      * Gson TypeAdapter for java.util.Date type
@@ -365,4 +421,10 @@ public JSON setDateFormat(DateFormat dateFormat) {
         dateTypeAdapter.setFormat(dateFormat);
         return this;
     }
+
+    public JSON setSqlDateFormat(DateFormat dateFormat) {
+        sqlDateTypeAdapter.setFormat(dateFormat);
+        return this;
+    }
+
 }